Locomotive structure



Nov.- 22, 1932. K. s. HOWARD LOCOMOTIVE STRUCTURE Filed April 27, 1931 4Sheets-Sheet 1 fl /mm A fra r ngy r/ci Nov. 22, 1932. K. s. HOWARD 4LOCOMOTIVE STRUCTURE Filed April 27. 1951 4 sneak -sheet 2 7 ll 1 ufiffor mgy e a Ina/6217 01- Z? Nov. 22, 193.2. K. s. HOWARD 1,888,824

LOCOMOTIVE STRUCTURE 4 Sheets-Sheet 5 Filed April 27, 1931 In V6 for/%d/'/ c /nam Fi/forngy Patented Nov. 22, 1932 UUETED srrsis ATENroFFicE KARL S. HOWARD, OF ST. LOUIS, MISSOURI, ASSIGNOR IO GENERAL STEELGASTINGS CORPORATION, OF' GRANITE CITY, ILLINOIS, A CORPORATION OFDELAWARE LOOOMOTIVE Application filed April 27,

My invention relates to railway rolling stock and consists in a novelarrangement and construction of the throttle valve, steam piping, andcylinder saddle in a locomotive.

It has been customary in locomotive construction to locate the throttlevalve either in the steam dome or in the upper part of the smoke box. Inthe former case, saturated steam is conducted from the valve in the dometo the T-head or super-heater header, as the case may be, through a drysteam pipe and then downwardly through the smoke box through live steampipes leading to the valve chambers for the main steam cylinders. In

the latter case, the saturated steam is led from the super-heater headerthrough the throttle valve and then downwardly through the smoke box asin the former case. In either case, the live steam pipes leading fromthe super-heater header extend downwardly from the upper part of thesmoke box on each side of the smoke box. The live steam pipes eitherlead through openings in the smoke box wall to the valve chambers onopposite sides of the cylinder saddle, or make connections with steampipes in the saddle itself.

The main object of my invention is to locate the throttle valve, eithersingle or multiple, as the case may be, in the main steam 0 pipe orpassage leading to the valve chambers and in the lower portion of thesmoke box, or in the boiler support, so that the valve or valves andvalve mechanism will be 5 readily accessible from the outside.

Another object of my invention is to simplify the construction byforming the valve housing integral with the main steam pipe or thecylinder saddle and thus eliminate the joints which are necessary in abuilt-up structure.

Another object of my present invention is to eliminate one of the steampipes from the smoke box, thus increasing the space avail- 4 able forother appliances and decreasing the STRUCTURE 1921. Serial No. 533,225.

expense and labor incidental to installing the steam connections withinthe smoke box.

Another object of my invention is to eliminate the openings in the smokebox wall where the live steam pipes pass out to the valve chambers.

Another object is to provide a more permanent and secure mounting forthe throttle valve than has been provided in previous designs oflocomotives.

Another object is to form the live steam pipes integral with andextending across the saddle and forming a brace between the valvechambers.

I attain these objects and others which will appear from the followingdescription by the structure illustrated in the accompanying drawings inwhich F'gure 1 is a top view of a locomotive cyl inder and a portion ofthe main frame embodying one form of my invention.

Figure 2 is a side elevation of the same showing the smoke box and anadjacent portion of the boiler in dot and dash lines.

Figure 3 is a front view of the same.

Figure 4': is a vertical longitudinal section taken on line 4-4 ofFigure 1.

Figure 5 is a top view, sectional in part, taken on line 5-5 of Figure 7and showing a modification of my invention.

Figure 6 is a side view of the same showing the throttle valve housingand a portion of the live steam pipe integral therewith.

Figure 7 is a front view of the same.

Figure 8 is a vertical longitudinal section taken on line 88 of Figure5.

Figure 9 is a detail vertical transverse section taken on line 99 ofFigure 2.

Figure 10 is a side view of a modified form of the structure shown inFigure 7.

Figure 11 is a substantially horizontal transverse section taken on theline 11-11 of Figure 10.

' Figure 12 is a horizontal transverse section taken on the line 12-12of Figure 13.

Figure 13 is a side view of a modified form of the structure shown inFigure 2.

In Figures 1 to 4:, inclusive, and 9, illustrating one form of myinvention, 1 indicate a portion of a locomotive underframe includingside frame members 1, a front deck 2, and various transverse members asintegral with a cylinder saddle structure including main steam cylinders3, steam con trol chambers 4E, and a smoke box support 5 includingsubstantially upright side walls and an arcuate top plate 9. The framemay be, however, of a built-up construction and the cylinder saddle maybe formed separately and secured to the frame by suitable means, withoutdeparting from the spirit of this invention. 1 7

Pairs of exhaust pipes olead from the valve chambers 4 and merge in thepassage which ez -lten ds upwardly, into the smoke box 8 init he usualmanner. T hemerged portion 7 of the exhaust pipe is shown integral withthe areuate top plate 9 of thecylinder saddle, although this feature isnot essential to 'my invention.

The cylinder saddle also includes live steam pipes 10 and 11 whichextend downwardly and outwardly to the valve chambers 4 from an uprightpassage 12011 the right sideof the saddle. This passage 12 is preferablyintegral with the arcuate top plate 9 which surrounds the smoke boxsaddle, and a collar 14: also surrounds the passages 7 and 12 at theirtops. Passage 12 merges with the acent wallof the saddle, as indicatedin Figure 9. fliive steam p'ipe 'llextends be hind upright exhauststeampassage 7 and the walls of thesetwo members 'merg e, as shown inFigured, thereby effecting a central support for, the transverse pipe11. Live steam pipes 10 andll and'exhaustpipes 6 are preferably integralwith the sm'oke box saddle, valve chambers, and main steam cylinders. jI

Ajthrottle valve housing or body 13 is formed integrally with'tlieportion of live steam passage 12 which merges with the wall of thesaddle and an outward opening is provided for inserting the valvemechanism 18 and to permit access thereto and operation thereof from theoutside. A partition 12a extends across'passage'12 adjacent valve body13 and has a central'perforationprovided :with a renewable annular valveseat 13a. A'single pipe 15 conducts steam from the superheater header15a downwardly through thesmoke box, and this pipe connects with theupper end of passage 12. Pipes 10 and'll, constituting arms on the lowerend of the passage 12, conduct the live steam f'r omthe throttle valveto each valve chamber.

In the modification shown in Figures 5 to 8,'the throttle valve housing16 is formed integrally with the live "steam pipe 17 exrivets, orwelding.

tending downwardly through the smoke box from the super-heater header orT-head (not shown). This pipe 17 connects with the substantially uprightpassage 28 which is divided at its lower end into arms 19 and 20 leadingoutwardly to the valve chambers 21. Exhaust steam passages 24 extendfrom the valve chambers through the saddle structure and merge in anupright passage 23 projecting into the smoke box. Arm 20 of the forkedlive steam member extends behind passage 23, and the walls of the twopipes merge, as shown in Figure 8, effecting a central support for thetransverse arm 20.

Live steam pipe sections 17 and 28 are curved to conform in a generalway with the contour of'the smoke box wall 25 and provide the maximumspace for various devices within the smoke "box. An opening is providedin the wall 25 adjacent valve housing loto permit access'to the valveinterior from th'e'outside and also to permit operationof the valve.Partition 16a, extending across pipe 16,ha's a central openingandarenewable valve seat 22a.

The upright passages 28 and 23 are shown as merged with the arcuate topweb 26 of the saddle. 'lhese passages might,however, extendthrough'holes in the web, or a portion of the web may form a'collars'imil'artothat shown at 1e in Figure 1 for furtherbracing' the members.r j

The form shownin Figures '10 and 11 corresponds with thatshown inFigures5,'6, '7, and 8'except that valve housing 29in live steam pipe 30is enlar ed to provide for a pair of'throttle valves. A partition 31extending across pipe 30 hasa pair of openings 32 mountingrenewablevalve seats 33. Pipe 30'connects with a 'pass'ag-e'3 1 leadingupwardly into thesmokebox from the valve chambers 35' as in Figures 5,6,7, and 8.

In Figures 12 and 13, corresponding with thef'oi'm shown'in Figuresl to1 and 9, a multiplevalvehousing 36 is formedin theenlarged portion oflive'stea mpip'e 37 which niergeswith' the wall of saddle 38. Outwardopenings 11 are provided in the wall drum saddle forinsertion of thevalve mechanisms and renewablevalve seats 39 are mounted in thepartition 40. v

I prefer to form the exhaust'pipes, live steam pipes, smoke box saddle,valve chambers, and main steam cylinders in' an integral structure withthe locomotive underframe in all forms of my invention hereinillustrated and described, but it would be withi n the spirit oftlieinvention to form some of these elements separately and secure them toadjacent structure by means of bolts, I Thestri'ictur'e illustrated mayalso be modified 'as to various other: details without departing fromthe invention and I contemplate the exclusive use 4 spirit of the of allsuch modifications as come within the scope of my claims.

I claim- 1. In a locomotive, an integral structure comprising a smokebox support, steam con trol chambers, and a live steam pipe, said livesteam pipe comprising transverse portions extending between saidchambers and an upright portion extending through the top of saidsupport.

2. In a locomotive, a cylinder saddle, steam control chambers adjacentthereto, a smoke box mounted on said saddle, and a live steam pipehaving transverse portions extending between said chambers and through.said saddle and merging in a substantially upright portion extendinginto said smoke box; said saddle, chambers, and live steam pipe formingan integral structure.

3. A locomotive live steam pipe and a throttle valve housing integraltherewith, said housing being arranged for a plurality of valves.

4;. In a locomotive, the combination of an integral structure includinga live steam pipe and throttle valve housing, and a renewable valve seatin said structure.

5. In a locomotive, the combination of an integral structure including alive steam pipe and an integral housing arranged for a plurality ofthrottle valves, and a plurality of renewable valve seats in saidstructure.

6. A locomotive cylinder saddle integral structure including a throttlevalve housing arranged for a plurality of valves.

7. A locomotive cylinder saddle integral structure including a throttlevalve housing, and a renewable valve seat in said structure.

8. A locomotive cylinder saddle integral structure including a throttlevalve housing arranged for a plurality of valves, and a plurality ofrenewable Valve seats in said structure.

9. A locomotive cylinder saddle structure having a throttle valvehousing located therein and arranged for a plurality of valves.

10. In a locomotive, a cylinder saddle structure, a throttle valvehousing located therein, and a renewable valve seat in said housing.

11. In a locomotive, an integral structure including a smoke box saddle,a live steam pipe extending through said saddle, a throttle valvehousing within said steam pipe, and a renewable valve seat in saidhousing.

12. In a locomotive, an integral structure including a smoke box saddle,a live steam pipe extending through said saddle, and a throttle valvehousing within said steam pipe, said housing being arranged for aplurality of valves.

13. In a locomotive, a smoke box, a steam supply member leading into thetop of said smoke box, a saddle supporting said smoke box, a throttlevalve located in said saddle,

and a live steam pipe for conducting steam from said member to saidthrottle valve.

14. In a locomotive, a smoke box, a steam supply member extending intothe upper part of said smoke box, a throttle valve located in the lowerpart of said smoke box, and a pipe for conducting live steam from theend of said member within said smoke box to said throttle valve.

15. In a locomotive, a cylinder saddle,

ing through said smoke box substantially from top to bottom, and athrottle valve mounted within said pipe near its bottom end and locatedwithin said walls.

17 In a locomotive, a smoke box, means for conducting live steam throughsaid smoke box comprising a single pipe leading through said smoke boxsubstantially from top to bottom, and a plurality of, throttle valvesmounted within said pipe near its bottom end.

18. In a locomotive, a smoke box, means for conducting live steamthrough said smoke box comprising a single pipe leading substantiallyacross said smoke box from top to bottom, and a throttle valve mountedwithin said pipe, said valve projecting through an opening in the wallof said smoke box.

19. In a locomotive, a cylinder saddle, valve chambers on each side ofsaid saddle, live steam passages extending from said chambers inwardlythrough said saddle and merging in a single passage extending up throughthe top of said saddle, and a throttle valve mounted in the mergedportion of said passages and projecting through an opening in the sideof said saddle.

20. In a locomotive, a smoke box saddle, an exhaust steam pipe extendingupwardly through the top thereof, and a live steam pipe in said saddlehaving an upwardly extending portion and transverse portions extendingfrom each side of said saddle and merging in said upwardly extendingportion, one or" said transverse portions being supported by saidexhaust pipe.

21. In a locomotive cylinder saddle structure, a plurality ofsubstantially upright walls adapted to mount a smoke box, exhaust steampipes extending between opposite walls of said structure and merging inan upwardly disposed passage extending beyond the top of said structure,and live steam pipes extending transversely of said structure and LQSmerging an upright portion spaced from said first mentioned, passage,the Wall of one of said transversely extending live steam pipes mergingwith the Wall of said upright passage.

, :22. In a locomotive cylinder saddle structure, spaced valve chambers,exhaust steam pipes extending between said chambers and merging in anupright passage extending through the top of said structure, and alivesteam pipe extending between said chambers and having an inletconnection intermediate its-ends.

In testimony whereof I hereunto aifix my signature this 21st day ofApril, 1931.

KARL S. HOWARD.

